# MA-959.082023: MyCERT Advisory - Mozilla Releases Security Updates for Firefox and Firefox ESR

**Date:** 05 Aug 2023  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-959.082023  
**Advisory ID:** MA-959.082023

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**1.0 Introduction**
Recently, Mozilla has released security updates to address vulnerabilities for Firefox 116, Firefox ESR 115.1, Firefox ESR 102.14, Thunderbird 115.1, and Thunderbird 102.14.
**2.0 Impact**
An attacker could exploit some of these vulnerabilities to take control of an affected system.
**3.0 Affected Products**
- [Firefox 116](https://www.mozilla.org/en-US/security/advisories/mfsa2023-29/)
- [Firefox ESR 115.1](https://www.mozilla.org/en-US/security/advisories/mfsa2023-31/)
- [Firefox ESR 102.14](https://www.mozilla.org/en-US/security/advisories/mfsa2023-30/)
- [Thunderbird 115.1](https://www.mozilla.org/en-US/security/advisories/mfsa2023-33/)
- [Thunderbird 102.14](https://www.mozilla.org/en-US/security/advisories/mfsa2023-32/)
**4.0 Recommendations**
MyCERT encourages users and administrators to review Mozilla’s security advisories for [Firefox 116](https://www.mozilla.org/en-US/security/advisories/mfsa2023-29/), [Firefox ESR 115.1](https://www.mozilla.org/en-US/security/advisories/mfsa2023-31/), [Firefox ESR 102.14](https://www.mozilla.org/en-US/security/advisories/mfsa2023-30/), [Thunderbird 115.1](https://www.mozilla.org/en-US/security/advisories/mfsa2023-33/), and [Thunderbird 102.14](https://www.mozilla.org/en-US/security/advisories/mfsa2023-32/) for more information and apply the necessary updates.
Kindly visit the URLs below:
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-29/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-31/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-30/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-33/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-32/>
Generally, MyCERT advises the users of this devices to be updated with the latest security announcements by the vendor and follow best practice security policies to determine which updates should be applied.
For further enquiries, please contact MyCERT through the following channels:
E-mail: cyber999[at]cybersecurity.my 
Phone: 1-300-88-2999 (monitored during business hours) 
Mobile: +60 19 2665850 (24x7 call incident reporting) 
Business Hours: Mon - Fri 09:00 -18:00 MYT 
Web: <https://www.mycert.org.my> 
Twitter: <https://twitter.com/mycert> 
Facebook: <https://www.facebook.com/mycert.org.my>
**5.0    References**
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-29/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-31/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-30/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-33/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2023-32/>
- [Mozilla Releases Security Updates for Multiple Products | CISA](https://www.cisa.gov/news-events/alerts/2023/08/02/mozilla-releases-security-updates-multiple-products)